baber/WOPTO huggingface dataset:
Patent GB-1061422-A (GB)
Title: Improvements in or relating to gear transmissions
Inventor: ENDERLEN HEINRICH
IPC: F16H1/46
Filed: 1963-09-05
Abstract: 1,061,422. Toothed gearing. GASTURBINENBAU UND ENERGIEMASCHINENENTWICKLUNG PIRNA, VEB. Sept. 5, 1963. No. 35046/63. Heading F2Q. An epicyclic gear for only one direction of rotation of input shaft 30 and output shaft 35, comprises planet gears 41, 42, 43, 44 the gears 41, 42 being integral and of opposite hand, and the gears 43, 44 also being integral and of opposit hand. Outer gears 41, 44 mesh sun gears 31, 32 on input shaft 30 and inner gears 42, 43 mesh ring gears 11, 12 mounted in the casing 1. A cavity 50 between inner gears 42, 43 forms a thrust balancing chamber to which lubricating oil is fed under pressure from a pump 51  through pipe 70 and passages 74-78. The pressurized fluid can escape from the thrust balancing chamber 50 through a control gap 50a and a channel 79 whence it can return to a pump reservoir. 52 through pipe 81. In modifications, shown in Fig. 2, two thrust balancing chambers are provided whereby the axial thrust may be balanced for either direction of rotation of input shaft 30. As shown in the upper half of Fig. 2, an annular piston 91<SP>1</SP> separates two thrust balancing chambers 50<SP>1</SP>, 90<SP>1</SP> formed in the gear 41. The pressurized fluid can escape through control gap 50a<SP>1</SP>, 90a<SP>1</SP> and passages 111, 109<SP>1</SP>. Fluid is directed to the appropriate chamber 50<SP>1</SP> or 90<SP>1</SP> by means of a three-way cock 95. The lower half of Fig. 2 shows a thrust balancing chamber 50 formed between the planet wheels and a thrust balancing chamber 90 formed by a piston 91, and located on the opposite side of the central web of one of the planet wheels. Fluid may escape from the chambers 50, 90, through control gaps 50a, 90a and passages 79 and 109. Fig. 3 shows an arrangement of countershaft gearing comprising helical-gears 131, 132, of opposite hand, secured to a driving shaft 130 helical gears 136, 137, of opposite hand, secured to a driven shaft 135, and intermediate helical gears 141-144 mounted on coaxial shafts 140, 250. The control gears 143, 144 are mounted on shaft 250 which has a piston-like end. 261 engaging, a cylindrical recess 262 in the gear 141, which is integral with shaft 140. The gear 142 is mounted on the other end of shaft 140. The two pairs of helical gears 141, 142 and 143, 144 have different diameters. A balancing chamber 150 is formed within gear 141 by piston 261 and is supplied with fluid from a pump 151 Fluid escapes from the chamber through a control gap 150a and passage 179.
Patent GB-841845-A (GB)
Title: Improvements relating to the manufacture of fluorescent screens
Inventor: BUCK PETER JOHN
IPC: H01J9/22
Filed: 1955-12-07
Abstract: 841,845. Luminescent screens. SIEMENS EDISON SWAN Ltd. Nov. 27, 1956 [Dec. 7, 1955], No. 35134/55. Addition to 699,660. Class 39(1). In the method of making a fluorescent screen claimed in the parent Specification in which to a cushioning layer of a solution of a soluble salt which reacts with a soluble silicate to give an insoluble silicate, and then adding a soluble silicate (normally a binder) and a sparingly soluble salt of an organic acid e.g. magnesium oxalate which reacts with the soluble silicate to give an insoluble silicate, allowing the phosphor to settle on the surface and decanting surplus liquid. The insoluble silicate formed acts as a binder. The cushioning layer is preferably barium acetate to which is added through a funnel and rose a water solution of potassium silicate and, almost immediately afterwards, a suspension of fluorescent material and magnesium oxalate in water. After decanting and drying the screen is heated to convert the magnesium oxalate to MgO. with the evolution of CO and CO 2 . The fluorescent material and binder can both be deposited together from the suspension. Specific proportions and times are given for the making of a screen for a 17 inch receiver. The process can be applied to the making of a monochrome or colour screen and in the latter case each colour phosphor is deposited separately through a mask. If the screen is not part of a cathode ray tube it may have to be placed in a liquid container during the process. A prior art process in which a glass backing plate is covered with a cushioning layer of potassium silicate, Ba(NO 3 ) 2  or barium acetate to which is then added a mixture of phosphor and calcium borate in water or potassium silicate is referred to.
Patent GB-814768-A (GB)
Title: Production of silica hydro-organosols and aerogels
IPC: C01B33/145
Filed: 1956-11-19
Abstract: Acidic silica hydro-organo sols containing colloidal silica, a water-miscible organic liquid, mineral acid in an amount sufficient to give a pH between 1.8 and 4.5 and at least 0.1 per cent by weight of a salt of such mineral acid are treated, either successively or simultaneously, with the hydrogen form of a water-insoluble, strong, cation-exchange material and with the base form of a water-insoluble, weak, anionexchange material containing a plurality of saltforming nitrogen atoms, at a temperature below 30 DEG  C. until the hydro-organo sol contains less than 0.01 per cent by weight of said salt, contact with the anion exchange material ceasing before the pH exceeds 4.5.  A silica aerogel substantially free of electrolyte is produced by heating the above salt to convert it to a hydro-organo gel and heating the gel in a closed vessel without any compressive liquid-solid interface until all the liquid has been converted to a vapour which is allowed to escape, e.g. as in U.S.A. Specification 2,093,454.  Specifications 649,896, 654,850 are referred to.
Patent GB-1387478-A (GB)
Title: Method of brazing ceramic articles to one another
IPC: B23K1/20
Filed: 1972-07-28
Abstract: 1387478 Soldering BRITISH LEYLAND TRUCK & BUS DIVISION Ltd 23 July 1973 [28 July 1972] 35290/72 Heading B3R [Also in Division C7] In joining porous ceramic articles the surfaces to be joined are impregnated with a metallic salt, the salt is reduced by heating in a reducing atmosphere and the resulting metallized surfaces on the articles are brazed together. Two articles, for use in a gas turbine, made of porous silicon nitride are painted with an aqueous solution of ammonium molybdate which is allowed to dry and the articles are heated in a hydrogen furnace at 600‹ C. and cooled while still in the hydrogen. Carbon monoxide may be employed instead of hydrogen. The metallized articles are then held in a jig with silver or nickel based brazing alloy between them and are heated in a reducing or inert atmosphere to effect brazing. Instead of molybdenum, nickel or silver may be used to metallize the articles, when the salt could be a nitrate.
Patent GB-196551-A (GB)
Title: Improvements relating to loose-leaf books, binders and the like
IPC: B42F13/00
Filed: 1922-12-28
Abstract: 196,551. Copeland Chatterson Co., Ltd., and Mann A. Dec. 28, 1922. Covers.-In loose-leaf books or binders having cushioning means at or near the ends of the clamping members, the cushioning means consists of a rubber &c. pad b, Figs. 2 and 5, provided with a bevelled shank c and a head e forming a shoulder f which abuts against the end of the clamping member when the shank is inserted in the recessed or hollow end thereof. In a modified construction of pad, Figs. 4 and 6, a boss j on the pad h fits into a hole i in the clamping member g which is rounded at its end g<2> so as to fit into a similarly shaped recess k in the pad.
Patent GB-1133055-A (GB)
Title: Process for dyeing synthetic fibrous materials or mixtures containing synthetic fibrous materials
Inventor: LANGMANN WERNER
IPC: D06P1/667
Filed: 1967-08-01
Abstract: 1,133,055. Phosphonic and phosphinic esters. FARBENFABRIKEN BAYER A.G. 1 Aug., 1967 [6 Aug., 1966; 22 March, 1967], No. 35325/67. Heading C2C. [Also in Division D1] In Examples 1, 3, 4, 5, 6, 7 and 8 the phosphorus compounds of formulµ are prepared respectively by (1) treating 1-oxo- 1-chloro-phospholine-3 with n-butanol, (3) treating trimethyl phosphite with methyl iodide, (4) reacting 1-oxo-1,3-dichloro-phospholine-3 with methanol, (5) heating a mixture of dimethyl-phosphite, acrylonitrile and sodium methylate in methanol, (6) heating di-n-butyl phosphite, acrylonitrile and sodium butylate in butanol, (7) heating phenyl-dichloro-phosphine and isoprene in presence of copper stearate, mixing the product with petroleum and the supernatant solution decanted, partially neutralizing the resultant solution with sodium hydroxide saturated with sodium chloride and extracting with chloroform, (8) treating benzenephosphonic acid dichloride with methanol.
Patent GB-465034-A (GB)
Title: Improvements in and relating to water-tube boilers
IPC: F27B1/08
Filed: 1936-12-28
Abstract: 465,034. Water-tube steam boilers. JEBENS, O. Dec. 28, 1936 Nos. 35553 and 35554. Con vention dates, Dec. 27, 1935 and June 26, 1936. [Class 123 (ii)] In a boiler having groups of tubes F, C1 enclosing the combustion chamber, theupper parts f of the tubes F in the path of the escaping furnace gases are forked to increase tube surface heated by conduction. The forks may be reunited before the connections of the tubes with the upper drum A, and the back row of tubes may be staggered instead of being forked.
Patent GB-175484-A (GB)
Title: Improvements relating to the vulcanization of the joints of inner tubes for the tyres of motor-cars, motor-cycles and the like
IPC: B29C33/76
Filed: 1920-12-18
Abstract: 175,484. Werneth Rubber Works, Ltd., and Saunders, C. H. Dec. 18, 1920. Vulcanizing, mandrels for; india-rubber, jointing.-A cylindrical mandrel for use in vulcanizing the joints of tyre tubes is composed of a number of sections c meeting in the centre. The mandrel preferably has a conical end to facilitate the withdrawal of the sections after use through the valve or other hole.
Patent GB-401902-A (GB)
Title: Improvements in humidifying or conditioning air
IPC: F24F6/06
Filed: 1932-12-15
Abstract: 401,902. Moistening and conditioning air. SOC. ANON. IMAC INSTALLATIONS MODERNES POUR AIR ET CHALEUR, 34, Rue Charles Quint, Ghent, Belgium. Dec. 15, 1932, No. 35616. Convention date, Dec. 17, 1931. [Class 55 (ii).] In a rotary atomiser for moistening and heating air, in which water is supplied through the. vanes of a fan, the outlet apertures 31 in the vane surfaces are arranged only near the front edges and towards the hub. Apertures are also arranged on the surface of the hub adjacent the rear edge of each vane. The fan 12, driven by a motor 15, is arranged within a pipe 47, and water is supplied to hollow spaces 21 within the hub by means of a pump 24 connected with a conduit 23 dipping into a compartment 22. An air heater 50 may be arranged between the motor and the fan. Excess liquid is trapped by helical baffles 45, and returns to the compartment 22. Fresh air enters through an opening 55, and internal air may be re-circulated through openings 54, 62 ; a pivoted damper 66 controls these openings.
Patent GB-157891-A (GB)
Title: Improvements in apparatus for supplying a combustible mixture of powdered fuel and air to furnaces
IPC: F23K3/00
Filed: 1920-12-20
Abstract: 157,891. Soc. d'Utilisation des Combustibles PulvÚrisÚs. Jan. 15, 1920, [Convention date]. Fuel, feeding.-Pulverulent fuel and air are mixed in an auxiliary conduit 4 forming a closed circuit, from which the mixture is withdrawn as required, by a fan, the amount not withdrawn passing on to a separator 5 included in the circuit. The mixture withdrawn is passed through a distributing conduit which also. forms a closed circuit and communicates with one or more furnaces. Fuel is fed from the hopper 1 either directly to a fan 3 or in front of the air injector nczzle 13 and the mixture of air and fuel passed through the conduit 4 to separator 5, provided with an air-inlet pipe 12, the separated air being led back to the fan through the pipe 6, and the fuel passing to the hopper 1. The mixture of fuel and air is withdrawn from the conduit 4 through the conduit 11 by a fan 7 and circulated through the conduit 8 communicating with the furnaces by the pipes 9, any excess fuel and air being returned through the conduit 10 to the suction conduit 11.
Patent GB-376642-A (GB)
Title: Feed water heater for marine steam boilers
IPC: F22D1/20
Filed: 1931-12-30
Abstract: 376,642. Heating feedwater. SAKIC, P., 16, Viska Ul, Split, Spalato, Jugoslavia. Dec. 30, 1931, No. 35959. Convention date, Jan. 1. [Class 64 (i).] A feedwater heater 8 for a marine returntube boiler is so attached to the boiler and funnel base 7 that it can be swung at any time during the operation of the boiler into or out of the funnel. Feedwater heating tubes 22 are fitted into side chambers 21 attached to a swinging rod 30 on a platform 28 at the funnel base. The rod is swung by a worm wheel segment 11 thereon and by a worm 32. When swung out of the funnel, the heater is cut out by a two-way cock 16 which is rotated to allow the feedwater from the pump 15 to flow directly to the boiler through a valve 20, a valve 19 in a pipe 18 connected to the heater being closed. A sliding gate 13 closes the opening in the base of the funnel through which the heater swings. The chambers 21 are subdivided by partitions 23 so that the water in the heater flows in different directions.
Patent GB-176917-A (GB)
Title: Improvements in screens for the lamps of motor cars
IPC: F21V11/00
Filed: 1920-12-23
Abstract: 176,917. Steward, H. C. Dec. 23, 1920. Lantern gratings.-A screen for preventing the glare of motor-car lamps consists of a casing 1 provided with polished sheet-metal or other vertical and horizontal intersecting plates 2, 3 which enclose prismatic cells 4 of considerable depth. A glass plate 5 covers the front of the shield. A large opening may be provided in the lower part of the screen. The screen may be hinged to the front of the lamp and secured by a screw, or may be attached by means of hinged metal straps provided with screw bolts which are passed through lugs on a plate resting against the rear end of the lamp.
Patent GB-1363536-A (GB)
Title: Method and apparatus for joining boards
IPC: B31D3/02
Filed: 1972-08-02
Abstract: 1363536 Composite metal sheeting W A WOOTTEN 2 Aug 1972 [9 Aug 1971 21 Oct 1971] 36107/72 Heading E1K [Also in Divisions B3 B5 and F2] A composite product comprises two metal panels 1 and 2 disposed in spaced relation to each other, each of said panels having a plurality of cuts therein defining tabs 3 and 4 which are bent relative to said panel to extend toward the other of said panels across substantially the entire space between the panels, pairs of tabs extending respectively from said panels being disposed in substantially overlapping relation to one another, the overlapping tabs being attached to one another to form intermediary members that retain the panels in fixed position relative to one another. The product may be made by a method comprising the steps of making cuts in each panel to form a plurality of tab areas therein, each cut leaving an uncut portion in the panel which is adapted to act as a hinge line for the tab area, the cuts providing like patterns of cuts in each panel, positioning the panels in spaced facing relation to one another with the like patterns of the tab areas in substantially opposing relation, bending the tab areas in each panel about their respective hinge lines to form a plurality of tabs. which extend into the space between the panels, each tab extending from one of the panels being disposed in facing, closely adjacent, substantially completely overlapping relation to a corresponding tab extending from the other panel, and fastening each tab extending from one of the panels to the corresponding tab extending from the other panel. The tabs may be connected to one another by an adhesive 6, by mechanical joining or by welding. The panels may be provided with tabs of graduated sizes to provide a spacing difference between the panels or to accommodate a contouring of one or both panels with respect to each other or to the centre line of the product. The tabs in one of the panels may be spaced from one another by a spacing which differs from that between the tabs in the other of the panels to retain the panels in a cylindrical configuration e.g. to form a cylindrical product. The outer surface of a or each panel may be covered by an imperforate overlay panel 5, 8. In a preferred embodiment, an overlay panel provided with larger tabs than those of the two panels is used, the larger tabs extending from this overlay panel being forced into the openings of the two panels in such a way that each tab from the overlay panel forms a contoured strut completely bridging the space between the original panels. In the embodiment shown in Fig. 8, a closed cut 14 is made in the centre of each open cut 12 of the first panel 10, a smaller open cut 15 being made in the centre of each open cut 13 of the second panel 11, the tabs formed from the open cuts 15 being mechanically engaged in the corresponding closed cuts 14.
Patent GB-1018294-A (GB)
Title: Improvements in or relating to optical masers
Inventor: MOORE ARTHUR CYRIL
IPC: H01S3/05
Filed: 1961-10-09
Abstract: 1,018,294. Optical masers. MINISTER OF AVIATION. Oct. 26, 1962 [Oct. 9, 1961], No. 36168/61. Heading H3B. The crystal element 1 of an optical maser is located between two plain mirrors which may be optically flat silvered glass plates 2, 3 and the spaces between the glass plates on the crystal end surfaces are filled with material 4 having substantially the same refractive index as the crystal. Plate 2 is wholly reflecting and plate 3 is 99% reflecting. If the crystal is ruby, the filling material may be di-iodomethane to which is added either sulphur or iodobenzene. A filling of aqueous sucrose may be used with a crystal of magnesium fluoride. The viscosity of the filling may be sufficient to retain it between the mirror and the crystal. In an alternative arrangement, the crystal is immersed in a box of filling liquid, the ends of the boss constituting the plane mirrors.
Patent GB-1366413-A (GB)
Title: Pistons for combustion engines
IPC: F16J9/00
Filed: 1972-08-03
Abstract: 1366413 Pistons SEALED POWER CORP 3 Aug 1972 [19 Aug 1971] 36215/72 Heading F2T A piston 10 comprises a non-ferrous metal cylindrical body having at the outer periphery of its head end 34 a recess 44 defined by a frustoconical back wall 48 tapering away from the end 34 and a radial shoulder 44, and a onepiece ring-carrier band 38 of a ferrous metal shrink-fitted into the recess with a frusto-conical inner periphery in mating interference engagement with the back wall 48. The band 38 is fitted in the recess 44 by heating the band and packing the piston in dry ice, the mating frusto-conical walls preferably being at an angle of five degrees to the piston axis. A piston ring 22 is housed in a groove 42 in the band 38. The piston may be of magnesium or aluminium alloy and the band may be of cast iron containing 18% or more nickel, up to 7% copper and 1À75 to 4% chromium.
Patent GB-1477673-A (GB)
Title: Seismic surveying with velocity analysis
IPC: G01V1/30
Filed: 1974-08-16
Abstract: 1477673 Seismic record processing GEOSOURCE Inc 16 Aug 1974 [22 Aug 1973] 36228/74 Heading G1G Common depth point seismic trace gathers are processed to provide an automatic velocity analysis. Each gather comprises traces arranged in order of source-detector offset distance x. The processing steps are as follows:- (a) A guiding function, which is a graph of average seismic velocity v as a function of zero-offset travel time To, is obtained based on prior knowledge of the relevant subsurface region. (b) For successive values of To in one gather the guiding function is used to compute the associated travel times T on the greatest-offset trace of that gather. (c) Each T value is incremented by Œ #t and a new  velocity function is computed from the To and incremented T values. (d) Step c is repeated, but using an increment of Œ 2 #t; then repeated again with Œ3 #t, and so on to give a family of velocity functions bracketing the guiding function. (e) At each To, hyperbolic travel time curves, one for each velocity function, across the trace gather are computed. (f) Respective narrow time windows about each hyperbolic curve are established and within any window the trace amplitude values are summed. (g) The sums are compared to determine the major sums for any given To and the associated velocity functions are noted. A table of these sums is drawn up for each To. Fig. 5A shows a typical table for To = 1816 ms., including also the sums for adjacent To times. For valid reflection events,  contours 51, Fig. 5B, drawn through sums of similar value should be skewed ellipses. (h) The sums are tested for validity according to the criteria: (i) at least three of the values immediately surrounding a peak value 53, Fig. 5C, must be > 50% of the peak value, (ii) a peak value in the adjacent column must be between zero and four velocity increments below, column 52, or above, column 54, the velocity for value 53 and must be between 50% and 100% of the value 53. (i) Sums satisfying the criteria are subjected to a statistical fit to a generally elliptic surface to interpolate improved estimates of the To, velocity and amplitude values of each reflection event. (j) The interpolated values obtained thus for various gathers are checked for continuity across several depth-points, by searching for similar velocity values in wedge-shaped windows in the depth point-travel time co-ordinates in which the values are represented. (k) Velocity values for which there is continuity are averaged over six adjacent depth-points. (1) Finally, a seismic record in depth-point-travel time co-ordinates is plotted by a CRT, in which event amplitude is represented by + or - signs of varying sizes, the averaged velocities by numbers at six-depth-point-intervals, and the reliability of the velocity estimates by asterisks of corresponding sizes.